Home / 1,389,308.08-2,083,963.56-442,678

Finding the Fourth Proportional to 1,389,308.08, 2,083,963.56 and 442,678

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Solution

The fourth proportional to 1,389,308.08, 2,083,963.56 and 442,678 is: 664,017.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,308.08 : 2,083,963.56 = 442,678 : x
  2. Step 2: Convert to fraction form
    1,389,308.08/2,083,963.56 = 442,678/x
  3. Step 3: Cross multiply
    1,389,308.08x = 2,083,963.56 × 442,678
  4. Step 4: Simplify right side
    1,389,308.08x = 922,524,820,813.68
  5. Step 5: Solve for x
    x = 922,524,820,813.68/1,389,308.08
  6. Step 6: Final answer
    x = 664,017.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.